/Engine/Plugins/Experimental/GeometryFlow/Source/GeometryFlowMeshProcessing/Public/MeshProcessingNodes/TransferMeshMaterialIDsNode.h
FTransferMeshMaterialIDsNodetransfers Material IDs from a SourceMesh to the Input mesh and returns in the Output mesh (can be applied in-place)
class FTransferMeshMaterialIDsNode : public [UE::GeometryFlow::FProcessMeshBaseNode](API\Plugins\GeometryFlowMeshProcessing\MeshProcessingNodes\FProcessMeshBaseNode)